FR2371573B3 - - Google Patents
Info
- Publication number
- FR2371573B3 FR2371573B3 FR7734741A FR7734741A FR2371573B3 FR 2371573 B3 FR2371573 B3 FR 2371573B3 FR 7734741 A FR7734741 A FR 7734741A FR 7734741 A FR7734741 A FR 7734741A FR 2371573 B3 FR2371573 B3 FR 2371573B3
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/06—Down-hole impacting means, e.g. hammers
- E21B4/14—Fluid operated hammers
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES453523A ES453523A1 (es) | 1976-11-20 | 1976-11-20 | Mejoras en los martillos de fondo para perforaciones de rocay suelos. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2371573A1 FR2371573A1 (fr) | 1978-06-16 |
| FR2371573B3 true FR2371573B3 (en:Method) | 1980-08-01 |
Family
ID=8472632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7734741A Granted FR2371573A1 (fr) | 1976-11-20 | 1977-11-18 | Marteau piqueur |
Country Status (2)
| Country | Link |
|---|---|
| ES (1) | ES453523A1 (en:Method) |
| FR (1) | FR2371573A1 (en:Method) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2523202A1 (fr) * | 1982-03-11 | 1983-09-16 | Stenuick Freres | Marteau a entrainement pneumatique du type " fond-de-trou " |
-
1976
- 1976-11-20 ES ES453523A patent/ES453523A1/es not_active Expired
-
1977
- 1977-11-18 FR FR7734741A patent/FR2371573A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| ES453523A1 (es) | 1977-11-16 |
| FR2371573A1 (fr) | 1978-06-16 |